Method realpath

packages/shell/src/workspace.ts:133–152

(path: string, _depth = 0)

  }

  async realpath(path: string, _depth = 0): Promise<string> {
    if (_depth > MAX_SYMLINK_DEPTH) {
      throw new Error(`ELOOP: too many levels of symbolic links: ${path}`);
    }

    const stat = await this.ws.lstat(path);
    if (!stat) {
      throw new Error(`ENOENT: no such file or directory: ${path}`);
    }

    if (stat.type !== "symlink") {
      return normalizePath(path);
    }

    const target = await this.ws.readlink(path);
    const resolved = target.startsWith("/")
      ? normalizePath(target)
      : normalizePath(`${dirname(path)}/${target}`);
    return this.realpath(resolved, _depth + 1);
  }

  resolvePath(base: string, path: string): string {
    return normalizePath(path.startsWith("/") ? path : `${base}/${path}`);